#pragma once
#include <iostream>
#include <cstring>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include "log.hpp"

Log lg;

const int backlog = 10;
enum 
{
    SocketError = 2,
    BindError,
    ListenError,

};
class Sock
{
public:
    Sock()
    {}
    ~Sock()
    {}
public:
    void Socket()
    {
        sockfd_ = socket(AF_INET, SOCK_STREAM, 0);
        if(sockfd_ < 0)
        {
            lg(Fatal, "socker error, %s:%d", strerror(errno), errno);
            exit(SocketError);
        }
    }
    void Bind(const uint16_t port)
    {
        struct sockaddr_in local;
        memset(&local, 0, sizeof(local));
        local.sin_family = AF_INET;
        local.sin_port = htons(port);
        local.sin_addr.s_addr = INADDR_ANY;

        if(bind(sockfd_, (const struct sockaddr*)&local, sizeof(local)) < 0)
        {
            lg(Fatal, "bind error, %s:%d", strerror(errno), errno);
            exit(BindError);
        }
    }
    void Listen()
    {
        if(listen(sockfd_, backlog) < 0)
        {
            lg(Fatal, "listen error, %s:%d", strerror(errno), errno);
            exit(ListenError);
        }
    }
    int Accept(std::string* clientip, uint16_t* clientport)
    {
        struct sockaddr_in perr;
        socklen_t len = sizeof(perr);
        int newfd = accept(sockfd_, (struct sockaddr*)&perr, &len);
        if(newfd < 0)
        {
            lg(Warning, "accept error, %s:%d", strerror(errno), errno);
            return -1;
        }
        char ipstr[64];
        inet_ntop(AF_INET, &perr.sin_addr, ipstr, sizeof(ipstr));
        *clientport = ntohs(perr.sin_port);
        *clientip = ipstr;
        return newfd;
    }
    bool Connect(const std::string& ip, const uint16_t& port)
    {
        struct sockaddr_in peer;
        memset(&peer, 0, sizeof(peer));
        peer.sin_family = AF_INET;
        peer.sin_port = htons(port);
        inet_pton(AF_INET, ip.c_str(), &(peer.sin_addr));
        int n = connect(sockfd_, (const struct sockaddr*)&peer, (socklen_t)sizeof(peer));
        if(n == -1)
        {
            std::cerr << "connect error: " << ip << ":" << port << std::endl;
            std::cout << strerror(errno) << std::endl;
            return false;
        }
        return true;
    }
    void Close()
    {
        close(sockfd_);
    }
    int Fd()
    {
        return sockfd_;
    }
private:
    int sockfd_;
};

